Clamp.



V. I. DA ROCHA.

CLAMPr APPLICATIONFILED JAN-20,1916.

Patented NW. 6, 1917.

I INVENTOR w,

ATTOR N E! WITNESSES support without the necessi eras v VERGINIO J. ns noscna, on sars'ronnnonn ISLAND...

. CLAMP.

To all whom it may concern Be it known that I, VERGINIO J. DA RooHA,

a citizen of the United States, residing at Bristol, in the county of Bristol and State of Rhode Island, have invented certainnew and useful Improvements in Clamps,.' of which the followingis a specification.

This invention relates'to clamps and more particularly to a clamp for securing lines such as a rope or the like.-

The principal object of the invention is to provide a clamp of this character which will serve to secure a ty of knotting the line. 1

Another objectof the invention isto provide a clamp of this character in which a line may be secured with slight effort and in a minimum of time.

Another object of the invention is to provide a clamp for aline or the like which may be freely pulled in one. direction relative to the clamp to tighten the line, and which will, upon release of the line serve to grip the same and prevent its movement in the opposite direction. i r

A further obj ectof the invention is to provide a clamp of this character which is extremely simple in construction, cheap and and which is ther easy to manufacture, oughly reliable and eflicient in operation.

With the foregoing and other objects in view, the invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter, more fully described, illustrated in the accompanying drawings, and claimed.

In the drawings:

Figure 1 is a side elevation of the clamp showing the same applied to a post and a rope clamped therein.

Fig. 2 is a front elevation.

Fig. 3 is a central vertical sectional view therethrough; and

Fig. 4 is a transverse section on the line 44 of Fig. 2.

Referring to the drawings by numerals, wherein is illustrated the preferred embodiment of my invention, 1 designates the base plate of the clamp which is preferably constructed of metal and which is of substantially rectangular shape. This plate is provided with openings 2 through which screws or other suitable fastening elements may be passed to secure the plate to an object, indicated at A. This plate intermeline to. .a relatively fixed Specification 6f Letters Patent. 1 a m q 1 17 Application filed January 20,1916. ,Seria1No. 73,234.-

diate its ends is provided upon the oppo eessed intermediateQits ends upon its oppo-I site edges to receive the. lugs 3 of the base plate, an enlargement being; formed upon the under face thereof and having an opening extending therethrough ,to receive the pintle 4..

The clamp member 5 upon'one of its ends is provided withspaced outstanding arms v6, on the outer side of each of which is a concave shoulder 6. At itsopposite end, that is to the other side of the pintle 4:, this clamp member "is of reduced width to form ,a tonguelO, at each side. of which isa concave shoulder; 10. The rearor under face of,;th1e' tongue-is flared or curvedaway from the. base plate 1 toward its lower end androughened or knurled as indicated at 7,1-as is also theadjacentouter faceiof the base platel, asindicatedat-8., '1

The arms 6 are arranged within=theouter edges of the clamp member, the outer face of whichis provided with a pair of diagonal .lgrooves 9, crossing at the center of the clamp and which extend each from a shoulder 6 on one side to a shoulder 10 at the opposite side. The outwardly flaring lower ends of the base plate and clamp member cooperate to form a securing means-for a rope which they grip more tightly as the tension on the rOpe is increased. 7

The line, shown in the present instance, as a rope B, to be secured by the clamp, is first passed between the arms 6 and then in wardly and around one'of the arms, after which it is brought up and over the adjacent shoulder 6 and along the diagonal groove 9 extending from said shoulder to the opposite shoulder 10 thence under the tongue 10 of the clamp member and drawn in toward the pintle 4 between the clamp member and the base plate. By pulling upon this end of the line, the same will be permitted to slide freely'between the base plate and clamp member and over the clamp member and between the arms to tighten the line, but as soon as the end of the line is released, the tension of the line will tend to swing the upper end of the clamp member outwardly upon its pivot point and throw its lower end inwardly to clamp the rope against the base plate, the roughened faces of the adjacent clamping faces of the base plate and clamp member serving to prevent sliding movement of the end of thevrope. in its clamped position. It will thus be seen that the greater the pull. upon. the ropethe greater will be the clamping action of the clamp member against its'free end.

If desired more than a single'rope may be passed between the arms 6 and extended diagonally over the clamp plate in opposite directions and brought between the clamp faces of the plate'and clamp member, as will be understood.

From the above description-it will be ap parent that I have provided a clamp which will secure one end of a line to an object without necessitating knotting of the line in any manner. It will also be seen that the line may be secured efiiciently in a. minimum of time.

From the foregoing description taken in connection, with the accompanying drawings, it is thought that the construction and operation of my improved clamp will be readily understood and while I have herein shown and described one preferred embodiment of my invention, I do not wish to be limited thereto except for such limitations as the claims may import.

I claim:

1; A clamp comprising a base plate, a clamp member pivotally connected to said base plate intermediate its ends and having a tongue at one end and a pair of outstand- Qepilea of this patent may be obtained for five cents ing arms upon the opposite end the facing' or co-acting sides of said base plate and tongue being beveled from each other toward their free ends and roughened.

2A clamp comprising a base plate, a clam p, member pivotally mounted. upon said base plate having a tongue projecting from one end and a pair of arms on its opposite end, a shoulder being formed on the outside of each arm and each side of said tongue, and diagonally extending grooves extending between opposite shoulders, the opposing faces of said base plate and tongue being roughened and beveled away from each other toward the free ends of thesame.

3. A clamp comprising a base plate hav ing lugs formed at the side edges thereof intermediate its ends, and a roughened flan ing outer face on one end of said plate, a.

clamping member arranged between said lugs, apintle extending through said lugs and said clamping member, arms carried upon one end of saidclampingmember, each arm having a shoulder on its outer side at its junction with said member, a tongue on the opposite end of the clamping member having a shoulder on each side, the inner face of the clamping member being rough? ened and beveled, and crossing grooves on the outer face of said clamping member joining diagonally opposite shoulders.

In testimony whereof I aiiix. my signature in presence of two Witnesses.

VER'GINIO J. DA ROOHA. Witnesses SAML WESLEY IRWIN, I

MARGUERITE WARDWELL DE ROGHA.

h, by a d essin the fiemm ss r in nts Wnshingten, E0. 

